Home / 670,421.80-1,004,855.10-270,800.20

Finding the Fourth Proportional to 670,421.80, 1,004,855.10 and 270,800.20

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Solution

The fourth proportional to 670,421.80, 1,004,855.10 and 270,800.20 is: 405,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,421.80 : 1,004,855.10 = 270,800.20 : x
  2. Step 2: Convert to fraction form
    670,421.80/1,004,855.10 = 270,800.20/x
  3. Step 3: Cross multiply
    670,421.80x = 1,004,855.10 × 270,800.20
  4. Step 4: Simplify right side
    670,421.80x = 272,114,962,051.02
  5. Step 5: Solve for x
    x = 272,114,962,051.02/670,421.80
  6. Step 6: Final answer
    x = 405,886.21

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.